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import re
class MockSDS1000XEDevice:
def __init__(self):
# Mock internal values
self._channels = [{"AMPL" : None, "VDIV" : None} for i in range(0, 4)]
def _handleRequest(self, request: str) -> str:
m = re.search(r"C(?P<channel>\d):(?P<opcode>\w+)\??\s(?P<arg>.+)", request.strip())
if not m:
return None
channelIndex = int(m.group("channel")) - 1
opcode = m.group("opcode")
if opcode == "PAVA":
arg = m.group("arg")
value = self._channels[channelIndex].get(arg)
unit = "Hz" if arg == "FREQ" else "V"
if value is None:
return None
else:
response = f"C{m.group('channel')}:PAVA {arg},{value:.6E}{unit}"
return response
elif opcode == "VDIV":
arg = float(m.group("arg").rstrip("V"))
self._channels[channelIndex]["VDIV"] = arg
return None
return None
def setAmplitude(self, channel: int, value: float) -> None:
self._channels[channel - 1]["AMPL"] = value
def setPeakToPeak(self, channel: int, value: float) -> None:
self._channels[channel - 1]["PKPK"] = value
def setRMS(self, channel: int, value: float) -> None:
self._channels[channel - 1]["RMS"] = value
def setFrequency(self, channel: int, value: float) -> None:
self._channels[channel - 1]["FREQ"] = value
def getVoltsPerDivision(self, channel: int) -> float:
return self._channels[channel - 1]["VDIV"]
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